demo_update_set.js:
var MongoClient = require('mongodb').MongoClient; var url = "mongodb://localhost:27017/mydb"; MongoClient.connect(url, function(err, db) { if (err) throw err; var myquery = { address: "Valley 345" }; var newvalues = {$set: {address: "Canyon 123"} }; db.collection("customers").update(myquery, newvalues, function(err, res) { if (err) throw err; console.log(res.result.nModified + " record updated"); db.close(); }); });
C:\Users\My Name>node demo_update_set.js
1 record updated